Chitosan as a Tool for the Purification of Waters

Jeuniaux, Charles; Almas, K. A.; Baradarajan, A.; Blair, H. S.; Decock, Patrick; Deiana, S.; Dessì, Alessandro; Dubois, B.; Findon, A.; Kozłowski, Henryk; McKay, James; Micera, Giovanni; Sastry, C. S. P.; Senstad, C.; Thomé, Jean-Pierre; Daele, Jeroen Van; Venkatrao, B.

doi:10.1007/978-1-4613-2167-5_66

Cited by 16 publications

(4 citation statements)

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“…However, there has been limited attention paid to the food application of these versatile biopolymers. They offer a wide range of unique applications including bioconversion for the production of value-added food products [ 23 – 25 ], preservation of foods from microbial deterioration [ 26 – 30 ], formation of biodegradable films [ 31 – 36 ], recovery of waste material from food processing discards [ 37 – 44 ], purification of water [ 45 – 48 ] and clarification and deacidification of fruit juices [ 49 – 53 ]. In this text, we especially pay attention to the antimicrobial function of chitin and chitosan in fruits.…”

Section: Structures and Functions Of Chitin And Chitosanmentioning

confidence: 99%

Effects of Chitin and Its Derivative Chitosan on Postharvest Decay of Fruits: A Review

Zhang

Liu

2011

IJMS

152

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Considerable economic losses to harvested fruits are caused by postharvest fungal decay during transportation and storage, which can be significantly controlled by synthetic fungicides. However, considering public concern over pesticide residues in food and the environment, there is a need for safer alternatives for the control of postharvest decay to substitute synthetic fungicides. As the second most abundant biopolymer renewable source in nature, chitin and its derivative chitosan are widely used in controlling postharvest decay of fruits. This review aims to introduce the effect of chitin and chitosan on postharvest decay in fruits and the possible modes of action involved. We found most of the actions discussed in these researches rest on physiological mechanisms. All of the mechanisms are summarized to lay the groundwork for further studies which should focus on the molecular mechanisms of chitin and chitosan in controlling postharvest decay of fruits.

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Section: Structures and Functions Of Chitin And Chitosanmentioning

confidence: 99%

Effects of Chitin and Its Derivative Chitosan on Postharvest Decay of Fruits: A Review

Zhang

Liu

2011

IJMS

152

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“…Chitosan and its derivatives have shown various functional properties that have made them possible to be used in many fields including food [ 3 ], cosmetics [ 4 ], biomedicine [ 5 ], agriculture [ 6 ], environmental protection [ 7 ], and wastewater management [ 8 ]. Furthermore, biodegradable, nontoxic, and nonallergenic nature of chitosan especially encourages its potential use as a bioactive material [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Chitooligosaccharide and Its Derivatives: Preparation and Biological Applications

Lodhi

Kim

Hwang

et al. 2014

BioMed Research International

260

164

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Chitin is a natural polysaccharide of major importance. This biopolymer is synthesized by an enormous number of living organisms; considering the amount of chitin produced annually in the world, it is the most abundant polymer after cellulose. The most important derivative of chitin is chitosan, obtained by partial deacetylation of chitin under alkaline conditions or by enzymatic hydrolysis. Chitin and chitosan are known to have important functional activities but poor solubility makes them difficult to use in food and biomedicinal applications. Chitooligosaccharides (COS) are the degraded products of chitosan or chitin prepared by enzymatic or chemical hydrolysis of chitosan. The greater solubility and low viscosity of COS have attracted the interest of many researchers to utilize COS and their derivatives for various biomedical applications. In light of the recent interest in the biomedical applications of chitin, chitosan, and their derivatives, this review focuses on the preparation and biological activities of chitin, chitosan, COS, and their derivatives.

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“…Chitosan are highly basic polysaccharides with unique properties like the ability to form films [23] to react with polyanions [24] as well as to chelate and remove metal ions [25]. The positive charge of chitosan confers to this polymer numerous and unique physiological and biological properties with great potential in a wide range of industries such as cosmetology (lotions, hair additives, facial and body creams) [26], food (coating, preservative, antioxidant, antimicrobial) [27][28][29][30][31][32], biotechnology (chelator, emulsifier, flocculent) [9,33] pharmacology and medicine (fibers, fabrics, drugs, membranes, artificial organs) [34][35][36] [46], environmental protection [47] and wastewater management [48]. Further, the biodegradable [49], non-toxic [50] and non-allergenic features of chitosan especially encourage its potential use as a bioactive material [51].…”

Section: Introductionmentioning

confidence: 99%

A Future Perspective in Crop Protection: Chitosan and its Oligosaccharides

Hemantaranjan

Katiyar

Singh

et al. 2014

APAR

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Studies on the biological activities of chitosan and its oligomers have been increasing, as no single type of chitosan or its oligomers exerts all of the above bioactivities. Moreover, different chitosan derivatives and enzymatic products have different structures and physicochemical properties, which may result in novel bioactivities or novel findings in known bioactive compounds. Chitosan oligosaccharides also have been shown to induce various plant defense-related cellular responses and possess by themselves antimicrobial properties against a wide spectrum of phytopathogens [18,19]. The biological activity of COS is known to depend on their structure. Chitosan derivatives have a wide scope of application and regulate the immune system of plants and induce the excretion of resistant enzymes. Moreover, chitosan not only activates the cells, but also improves its disease and insect resistant ability. There is a great concern about the consequences of utilization of chemicals on health and environment, so other means of controlling diseases have become a vehement necessity. There are other well-known problems in agriculture sector, such as: disease resistance to bactericides, fungicides and high costs to develop new products, so the scientists are interested in biological control agents and naturally occurring fungicides. Keeping in view the important role of chitosan and COS in agriculture, this review is aimed at investigating the efficacy of chitosan and its derivative on crop protection. ChitosanChitosan is derived from chitin, a polysaccharide found in exoskeleton of shellfish such as shrimp, lobster or crabs and cell wall of fungi [20]. Chitosan poly (1,4)-2-amino-2-deoxy-β-D IntroductionNow-a-day's new approaches and practices are being developed for sustainable agriculture for various crops and vegetables. Therefore, various work is going on chitosan association for different plants growth in various laboratories of India. Chitosan and its oligosaccharides are natural molecule that are applied to crops with the aim of reducing or replacing more costly and environmentally damaging chemical bactericides. With reduced input costs and the potential for increased yields, farmers could gain substantial benefits from these applications of chitosan and its oligosaccharides to crops.Chitosan is a one of the most abundant natural amino polysaccharides extracted from the exoskeleton of crustaceans and insect, from fungal cell walls, etc. These substances have a wide variety of applications in agricultural and biotechnological industries [1,2]. Among the novel families of biological macromolecules, whose relevance is becoming increasingly evident, are chitin and its main derivative, chitosan. Both are the simplest linear polysaccharide composed of α, 1-4 linked D-glucosamine (GlcN) and N-acetyl-D-glucosamine (GlcNAc) with various compositions of these two monomers. Chitin and its derivatives have become a promising alternative treatment due to its natural character, antifungal activity and elicitation of defense resp...

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Chitosan as a Tool for the Purification of Waters

Cited by 16 publications

References 0 publications

Effects of Chitin and Its Derivative Chitosan on Postharvest Decay of Fruits: A Review

Effects of Chitin and Its Derivative Chitosan on Postharvest Decay of Fruits: A Review

Chitooligosaccharide and Its Derivatives: Preparation and Biological Applications

A Future Perspective in Crop Protection: Chitosan and its Oligosaccharides

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